In the bottom of the window, you can see buttons like Generate, Show Code, Show Log.

Click the button ‘Generate’. It will save the DDL scripts in a file under a folder. You can see the location of the file in “what to generate tab”. Example: C:\Users\Data Modeling\Documents\Toad Data Modeler\GeneratedScripts\Generated.SQL

If you have access to the databases, then you can directly execute those scripts and create database objects in database or database schema.

Click Show. It will retrieve the information from that file “Generated.sql” and code is shown below.